Most appliance parts dealers have new boards to show you for reference. If no one in your village sells parts, you should be able to find somewhere within driving distance. Make a list and check it out.

Most of the people who do what you are thinking of doing usually start with a new board the first time. It' a business investment that is unavoidable, since the manufacturers do not put this proprietary information out there for us. That would basically be giving away their trade secrets, even though an electronics person can read and ID the components.